（*)Alkibia/dhs), the son of Cleinias, was born at Athens about B. C. 450, or a little earlier. His father fell at Coroneia B. C. 447, leaving Alcibiades and a younger son. (Plat. Protag. p. 320a.)
The last campaign of the war with Potidaea was in B. C. 429. Now as Alcibiades served in this war, and the young Athenians were not sent out on foreign military service before they had attained their 20th year, he could not have been born later than B. C. 449. If he served in the first campaign (B. C. 432), he must have been at least five years old at the time of his father's death. Nepos (Alcib. 10) says he was about forty years old at the time of his death (B. C. 404), and his mistake has been copied by Mitford.
Alcibiades was connected by birth with the noblest families of Athens. Through his father he traced his descent from Eurysaces, the son of Ajax (Plat. Alcib. I. p. 121), and through him from Aeacus and Zeus. His mother, Deinomache, was the daughter of Megacles, the
the nephew as well as fellow-townsman of Simonides. (Strab. x. p.426; Steph. Byz. s. v. *)Iouli/s.) His father is variously called Medon (Suidas, s. v. *Bakxuli/dhs), Meilon (Epigr. in novem Lyr. apud Böckh, Schol. Pind. p. 8), or Meidylus (Etym. M. p. 582. 20): his paternal grandfather was the athlete Bacchylides. We know nothing of his life, except that he lived at the court of Hiero in Syracuse, together with Simonides and Pindar. (Aelian, Ael. VH 4.15.) Eusebius makes him flourish in B. C. 450; but as Hiero died B. C. 467, and Bacchylides obtained great fame at his court, his poetical reputation must have been established as early as B. C. 470. The Scholiast on Pindar frequently states (ad Ol. 2.154, 155, ad Pyth. 2.131, 161, 166, 167, 171) that Bacchylides and Pindar were jealous of and opposed to one another; but whether this was the fact, or the story is to be attributed to the love of scandal which distinguishes the later Greek grammarians, it is impossible to determine.